Java Software Engineer – Payment Integration

Jobtailor; Hamburg; Vor Ort; EUR 85.000 - 120.000; Vollzeit

Zusammenfassung

Jobtailor in Hamburg is seeking an experienced backend engineer to design and develop highly resilient Java back-end systems that scale globally. You will own end-to-end feature lifecycles, from initial implementation to bug fixing and performance tuning, and collaborate with product managers, designers, and QA to translate complex needs into elegant technical solutions.

You will drive quality through automated testing, code reviews, and maintainable documentation while exploring emerging

Qualifikationen

• Advanced proficiency in Java and core frameworks (Spring, Spring Boot, Hibernate).
• Experience building distributed, scalable, high-availability systems.
• Strong SQL skills and ability to manage complex data structures.
• Hands-on experience with CI/CD pipelines (Jenkins/GitLab CI) and containerization (Docker, AWS ECS).
• A degree in Computer Science (or equivalent) and a track record of thriving in fast-paced, Agile environments.
• Bonus Points: JavaScript, Apache Camel, BPM engines.

Aufgaben

• Design and develop highly resilient back-end systems using Java for global scale.
• Own the end-to-end lifecycle of new features from implementation to bug fixing and performance tuning.
• Collaborate with product managers, UX designers, and QA to translate business needs into technical solutions.
• Drive quality through automated testing, code reviews, and clear maintainable documentation.
• Continuously research and evaluate emerging technologies to keep Wallee at fintech cutting edge.

Kenntnisse

Java

Spring / Spring Boot

Hibernate

Distributed systems

SQL

Agile / Scrum

Ausbildung

Bachelor's degree in Computer Science or equivalent

Tools

Docker

AWS ECS

Jenkins / GitLab CI

Apache Camel

BPM engines

Jobbeschreibung

Responsibilities

• Design and develop highly resilient back-end systems using Java, ensuring our infrastructure handles global scale with ease.
• Own the end-to-end lifecycle of new features, from initial implementation to refined bug fixing and performance tuning.
• Work closely with product managers, UX designers, and QA to translate complex business needs into elegant technical solutions.
• Drive quality through automated testing, rigorous code reviews, and the creation of clear, maintainable technical documentation.
• Continuously research and evaluate emerging technologies and methodologies to keep Wallee at the cutting edge of the fintech industry.

Requirements

• Advanced proficiency in Java and core frameworks such as Spring, Spring Boot, and Hibernate.
• Proven experience building distributed systems and scalable, high-availability solutions.
• Strong proficiency in SQL and experience managing complex data structures.
• Hands-on experience with CI/CD pipelines (Jenkins/GitLab CI) and containerization (Docker, AWS ECS).
• A degree in Computer Science (or equivalent experience) and a track record of thriving in fast-paced, Agile environments.
• Bonus Points: Experience with JavaScript, Apache Camel, or BPM engines.

Core Competencies

Demonstrates advanced proficiency in Java and core frameworks such as Spring and Hibernate, with a strong focus on building scalable, high-availability back-end systems. Proven ability to manage the end-to-end lifecycle of features while ensuring quality through automated testing and collaboration with cross-functional teams.